Getty San Francisco 49ers wide receiver Kendrick Bourne. What’s that old saying about making sure you know your enemy? The Arizona Cardinals signed veteran free agent wide receiver Kendrick Bourne away from the San Francisco 49ers on Monday to open NFL free agency, adding another weapon in what looks like it’s going to be a dismal, rebuilding year in the desert. “Arizona and former 49ers WR Kendrick Bourne reached agreement on a 2-year $10 million deal with a max value of $12 million,” ESPN’s